CN106498402B - One kind being used for the closed corrosion inhibiter of thermal spray metal coating porosity - Google Patents
One kind being used for the closed corrosion inhibiter of thermal spray metal coating porosity Download PDFInfo
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- CN106498402B CN106498402B CN201610931735.5A CN201610931735A CN106498402B CN 106498402 B CN106498402 B CN 106498402B CN 201610931735 A CN201610931735 A CN 201610931735A CN 106498402 B CN106498402 B CN 106498402B
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- Prior art keywords
- corrosion inhibiter
- metal coating
- corrosion
- hole
- cerous
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- 238000000576 coating method Methods 0.000 title claims abstract description 64
- 238000005260 corrosion Methods 0.000 title claims abstract description 64
- 239000011248 coating agent Substances 0.000 title claims abstract description 63
- 230000007797 corrosion Effects 0.000 title claims abstract description 62
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 42
- 239000002184 metal Substances 0.000 title claims abstract description 42
- 239000007921 spray Substances 0.000 title claims abstract description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 33
- -1 Cerium class compound Chemical class 0.000 claims abstract description 17
- 235000019441 ethanol Nutrition 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 13
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims abstract description 9
- 229910004664 Cerium(III) chloride Inorganic materials 0.000 claims abstract description 8
- VYLVYHXQOHJDJL-UHFFFAOYSA-K cerium trichloride Chemical compound Cl[Ce](Cl)Cl VYLVYHXQOHJDJL-UHFFFAOYSA-K 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011734 sodium Substances 0.000 claims abstract description 6
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 6
- 235000019832 sodium triphosphate Nutrition 0.000 claims abstract description 6
- 235000010288 sodium nitrite Nutrition 0.000 claims abstract description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 3
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims abstract description 3
- OZECDDHOAMNMQI-UHFFFAOYSA-H cerium(3+);trisulfate Chemical compound [Ce+3].[Ce+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O OZECDDHOAMNMQI-UHFFFAOYSA-H 0.000 claims abstract description 3
- 229910000333 cerium(III) sulfate Inorganic materials 0.000 claims abstract description 3
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical compound O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 claims abstract description 3
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000007664 blowing Methods 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 7
- 239000003112 inhibitor Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000012466 permeate Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 229910052684 Cerium Inorganic materials 0.000 claims 1
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 claims 1
- 229910052738 indium Inorganic materials 0.000 claims 1
- 230000005764 inhibitory process Effects 0.000 claims 1
- 230000000536 complexating effect Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 5
- 239000011707 mineral Substances 0.000 abstract description 5
- 239000011148 porous material Substances 0.000 abstract description 5
- 230000001681 protective effect Effects 0.000 abstract description 4
- 230000002277 temperature effect Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000012958 reprocessing Methods 0.000 description 6
- 239000001488 sodium phosphate Substances 0.000 description 5
- 229910000162 sodium phosphate Inorganic materials 0.000 description 5
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 5
- 238000010285 flame spraying Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 2
- 210000000981 epithelium Anatomy 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000000703 Cerium Chemical class 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000011799 hole material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011684 sodium molybdate Substances 0.000 description 1
- 235000015393 sodium molybdate Nutrition 0.000 description 1
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 description 1
- 238000005829 trimerization reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/02—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in air or gases by adding vapour phase inhibitors
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
Abstract
One kind belonging to the corrosion proof technical field in atmospheric environment for the closed corrosion inhibiter of thermal spray metal coating porosity.Wherein, 60~100ppm of sodium nitrite concentration；Tripolyphosphate sodium content is 500~1200ppm；Phosphoric acid sodium content is 250~600ppm；400~600ppm of molybdic acid na concn；Cerium class compound concentration is 60~150ppm；Cerium class compound is cerous chloride, cerous sulfate or cerous nitrate；The organic coating liquid of the 3.0%~10.0% of corrosion inhibiter weight and 5%~15% ethyl alcohol are also accounted for, remaining is water.The present invention compounds alkyls compound, is allowed to advantageously form organo-mineral complexing protective film in pore interior.Meanwhile in order to increase the permeance property of sealing of hole corrosion inhibiter, addition alcohol reduces the surface tension of sealing of hole corrosion inhibiter, is conducive to be allowed to penetrate into hole depths.Finally, under certain temperature effect, organo-mineral complexing protective film quickly is formed in metal coating pore interior, to play the role of improving metal coating environmental suitability.
Description
Technical field
The invention belongs to utilize corrosion inhibiter, closing reprocessing is carried out to the hole of thermal spray metal or alloy coat, with
Improve thermal spray metal coating corrosion proof technology in atmospheric environment.A kind of corrosion inhibiter is used, to thermal spray metal coating
Surface carries out sealing of hole reprocessing.In this way, environmental suitability of the thermal spray metal coating in corrosive atmosphere can be significantly increased.
Background technology
Preparation for metal coating generally uses plasma spray technology.Plasma spray technology can be prepared in metal base surface
The coating for providing excellent properties has been applied to assign the performances such as preferably wear-resisting matrix, anti-corrosion, high temperature resistant, impact resistance
Protecting metallic surface and reparation field.Common plasma spray technology has electric arc spraying, supersonic flame spraying and plasma spraying
Technology.
Determine thermal spray metal coating performance is the corrosion resistance of coating itself at all.Meanwhile the corrosion resistance of metal coating
Can be not only related with the property of coating itself, but also it is related with bond strength, that is, adhesive force of metal coating.In metal coating
Preparation process in, accumulation is overlapped mutually due to metallic, inherently forms hole between particle and particle, hole can be with
It is divided into two class of through hole and non-through hole.Since through hole has directly been connected to corrosive environment and base material, through hole is passed through than non-
Perforation is with greater need for drawing attention.The main source of coating porosity is unfused, part fusing or re-solidified particle.Hole
Gap rate can influence mechanical mechanics property, thermophysical property and corrosion resisting property of coating etc., be that metal coating one is vital
Property.Therefore it is necessary to which adopting a series of measures, to reduce coating porosity, ensures that coating has outstanding anti-corrosion, wear-resisting property.
Studies have shown that the metal coating wear-resisting property by reprocessing and the metal coating wear-resisting property without reprocessing
It compares, the former is higher by 77% to 140% than the latter.This is primarily due to metal coating can effectively reduce coating after reprocessing
In porosity, reduce even eliminate coating in hole so that metal coating defect further decreases, to enhance gold
Belong to corrosion resistance, the wear-resisting property of coating.
Currently, for the main chromate using organic coating and oxidisability of closing of spray metal coating aoxidize blunt
Change is handled.Organic coating often changes metal coating true colours, the result is that limiting the application range of metal coating.Using chromium
Hydrochlorate carries out oxidative deactivation processing, on the one hand it is impossible to meet environmental requirement, another aspect passivating film short life, and not anti-chlorine ion
Corrosion.For this reason, it may be necessary to a kind of surface state not significantly affecting metal coating itself is developed, and can be to metal coating hole
Gap carries out effective Seal treatment, improves environmental suitability of the metal coating in corrosive atmosphere environment.
Invention content
One kind being used for the closed corrosion inhibiter of thermal spray metal coating porosity, it is characterised in that：
In corrosion inhibiter, 60~100ppm of sodium nitrite concentration；Tripolyphosphate sodium content is 500~1200ppm；Sodium phosphate contains
Amount is 250~600ppm；400~600ppm of molybdic acid na concn；Cerium class compound concentration is 60~150ppm；Cerium class compound is
Cerous chloride, cerous sulfate or cerous nitrate；
It also accounts for the commercially available organic coating liquid of the 3.0%~10.0% of corrosion inhibiter weight and accounts for the 5% of corrosion inhibiter weight
~15% ethyl alcohol, remaining is water.
Further, ethyl alcohol is added to using the ethanol solution that weight percent concentration is 95% in corrosion inhibiter.
Further, the cerium salt in corrosion inhibiter is cerous chloride.
Further, the KD-T organic coating liquid of Qingdao perseverance Xinda Chemical Co., Ltd. production.
The application of the corrosion inhibiter, it is characterised in that：
Above-mentioned corrosion inhibitor solution is sprayed on the metal coating surface that thermal jet coats, is allowed to voluntarily permeate small not less than 8
When；Then, using warm-air drier, 40~70 degree of outlet temperature is adjusted, the metal coating surface to spraying corrosion inhibiter carries out hot wind and blows
It sweeps；
It repeats the above steps 2 times or more, that is, spraying corrosion inhibiter, then for hot-air blowing at 3 times or more, each interval time 3 is small
When.
It includes nitrite sodium, sodium phosphate, trimerization that the iron-based material corrosion inhibiter that corrosion inhibiter is developed, which is a kind of hypotoxicity,
Sodium phosphate, sodium molybdate and cerous chloride.In above-mentioned corrosion inhibiter, organic coating liquid is added and is mixed, in order to promote above-mentioned have
Machine inorganic compounding corrosion inhibiter penetrates into the hole of thermal spray metal coating, and ethyl alcohol is added to reduce organo-mineral complexing corrosion inhibiter
Surface tension.The corrosion inhibiter of iron-based processing surface spraying metal coating sealing pores is constituted as a result,.
The present invention is further to compound alkyls compound on the basis of researching and developing iron-based processing corrosion inhibitor, be allowed to
Organo-mineral complexing protective film is advantageously formed in pore interior.Meanwhile in order to increase the permeance property of corrosion inhibiter, addition alcohol,
Or organic solvent of ketone compound, the surface tension of corrosion inhibiter is reduced, is conducive to be allowed to penetrate into hole depths.Finally, exist
Under certain temperature effect, organo-mineral complexing protective film quickly is formed in metal coating pore interior, to play raising metal
The effect of coating environmental suitability.
Specific implementation mode
Organic coating liquid using commercially available KD-T organic coatings liquid, (give birth to by Qingdao perseverance Xinda Chemical Co., Ltd. in following embodiment
Production), the weight percentage data in ethyl alcohol and organic coating liquid is the weight percent for accounting for corrosion inhibiter, what ethyl alcohol was proposed with
It is that the ethanol solution that weight percent concentration is 95% is added in corrosion inhibiter.
Corrosion inhibiter is sprayed on the metal coating surface that thermal jet coats, is allowed to voluntarily permeate 8 hours；Then, using warm
Wind turbine adjusts 40~70 degree of outlet temperature, and the metal coating surface to spraying corrosion inhibiter carries out hot-air blowing；It is right to spray corrosion inhibiter
Hot-air blowing is at 3 times or more afterwards, 3 hours each interval times.
Example 1 is when corrosion inhibiter group is as sodium nitrite class compound 60ppm, tripolyphosphate sodium compound 800ppm, phosphoric acid
When sodium 400ppm, molybdic acid sodium compound 500ppm, cerous chloride 100ppm, then the commercially available epithelium liquid with 10.0% (wt./wt.)
It is mixed, and the ethyl alcohol organic solvent mixing of 15% (wt./wt.) is added, obtain corrosion inhibiter.To supersonic flame spraying gold
Belong to coating surface and spray corrosion inhibiter, using 70 degree of hot-air blowing of outlet temperature, so processing 3 times.As a result, it has been found that hot-air blowing
Afterwards, salt spray test was up to 80 days or more.
Example 2 is when corrosion inhibiter group is as sodium nitrite compound 100ppm, sodium tripolyphosphate 1000ppm, sodium phosphate
When 500ppm, molybdic acid sodium compound 750ppm, cerous chloride 150ppm, then the commercially available epithelium liquid progress with 3.0% (wt./wt.)
Mixing, and the ethyl alcohol mixing of 5% (wt./wt.) is added, obtain corrosion inhibiter.Supersonic flame spraying metal coating surface is sprayed
Corrosion inhibiter, using 50 degree of hot-air blowing of outlet temperature, so processing 3 times.As a result, it has been found that metal coating salt-fog resistant time is up to 75
More than it.
Example 3 becomes sodium nitrite compound 60ppm, sodium tripolyphosphate 900ppm, sodium phosphate 300PPM when corrosion inhibiter group,
It when molybdic acid sodium compound 450ppm, cerous chloride 100ppm, then is mixed with 5% organic coating liquid, and is added 10%
(wt./wt.) ethyl alcohol mixing, obtains corrosion inhibiter.Corrosion inhibiter is sprayed to supersonic flame spraying metal coating surface, using going out
The hot-air blowing of 60 degree of temperature of mouth, so processing 3 times.As a result, it has been found that density of corrosion inhibitor is reasonable, osmotic effect is fine.Through too slow
The metal coating salt-fog resistant time of erosion agent reprocessing reaches 3 months or more.
Claims (5)
1. one kind being used for the closed corrosion inhibiter of thermal spray metal coating porosity, it is characterised in that：
In corrosion inhibiter, 60~100ppm of sodium nitrite concentration；Tripolyphosphate sodium content is 500~1200ppm；Phosphoric acid sodium content is
250~600ppm；400~600ppm of molybdic acid na concn；Cerium class compound concentration is 60~150ppm；Cerium class compound is trichlorine
Change cerium, cerous sulfate or cerous nitrate；
Also account for the commercially available organic coating liquid of the 3.0%~10.0% of corrosion inhibiter weight and account for corrosion inhibiter weight 5%~
15% ethyl alcohol, remaining is water.
2. corrosion inhibiter according to claim 1, it is characterised in that：
In this sealing of hole corrosion inhibiter, ethyl alcohol is added to sealing of hole inhibition using the ethanol solution that weight percent concentration is 95%
In agent.
3. corrosion inhibiter according to claim 1, it is characterised in that：
Cerium class compound in corrosion inhibiter is cerous chloride.
4. corrosion inhibiter according to claim 1, it is characterised in that：
The commercially available organic coating liquid is the KD-T organic coating liquid of Qingdao perseverance Xinda Chemical Co., Ltd. production.
5. the application of corrosion inhibiter as described in claim 1-4 any one, it is characterised in that：
Above-mentioned corrosion inhibitor solution is sprayed on the metal coating surface that thermal jet coats, is allowed to voluntarily permeate not less than 8 hours；So
Afterwards, using warm-air drier, 40~70 degree of outlet temperature is adjusted, the metal coating surface to spraying sealing of hole corrosion inhibiter carries out hot wind and blows
It sweeps；
It repeats the above steps 2 times or more, that is, spraying corrosion inhibiter, then hot-air blowing is at 3 times or more, 3 hours each interval times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610931735.5A CN106498402B (en) | 2016-10-25 | 2016-10-25 | One kind being used for the closed corrosion inhibiter of thermal spray metal coating porosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610931735.5A CN106498402B (en) | 2016-10-25 | 2016-10-25 | One kind being used for the closed corrosion inhibiter of thermal spray metal coating porosity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106498402A CN106498402A (en) | 2017-03-15 |
| CN106498402B true CN106498402B (en) | 2018-07-27 |
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| CN201610931735.5A Expired - Fee Related CN106498402B (en) | 2016-10-25 | 2016-10-25 | One kind being used for the closed corrosion inhibiter of thermal spray metal coating porosity |
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| US11692458B1 (en) * | 2022-06-29 | 2023-07-04 | General Electric Company | Systems and methods of protecting metallic engine components from corrosion |
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| US5976415A (en) * | 1997-10-30 | 1999-11-02 | H.B. Fuller Licensing & Financing Inc. | Corrosion-inhibiting polysulfide sealants |
| CN1092249C (en) * | 1998-04-08 | 2002-10-09 | 中国科学院福建物质结构研究所二部 | Novel corrosion inhibitor for inhibiting iron and steel corrosion in running water |
| CN101260521A (en) * | 2008-04-21 | 2008-09-10 | 华南理工大学 | Aluminum alloy surface rare earth chemical conversion treatment method |
| CN102851660A (en) * | 2012-09-29 | 2013-01-02 | 西安建筑科技大学 | Phosphorus-free and chromium-free passive film-forming solution for steel surfaces and usage method thereof |
| CN103046036B (en) * | 2012-12-06 | 2017-04-05 | 安徽未来表面技术有限公司 | A kind of metal rust-removing anti-rust agent and preparation method thereof |
| CN103668258B (en) * | 2013-11-29 | 2016-01-27 | 江苏帕齐尼铜业有限公司 | A kind of Copper and its alloy surface treatment agent |
| CN104372360A (en) * | 2014-10-31 | 2015-02-25 | 无锡贺邦金属制品有限公司 | Water-based metal cleaning solution |
| CN104372361A (en) * | 2014-10-31 | 2015-02-25 | 无锡贺邦金属制品有限公司 | Water-based metal cleaning solution |
| CN104451708A (en) * | 2014-11-25 | 2015-03-25 | 昆山瑞昱化工有限公司 | Metal part cleaner |
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